Ford Mustang (1999-2004) Service Manual: Transmission Description (Description and Operation)
The 4R70W has the following features:
- Wide ratio gears
- Four speeds
- Rear wheel drive
- Automatic
- Electronic shift
- Torque converter clutch control
- Line pressure controls
The transmission uses Ravigneaux-style double-pinion gearset with two bands, one one-way roller clutch, one mechanical diode and four friction clutches to produce four forward gears and Reverse.
4R70W Automatic Transmission

Automatic Transaxle/Transmission
General Specifications
a - MERCON V is not interchangeable at this time with the current MERCON
fluids. Check the
transmission fluid level indicator to determine the correct fluid and refer to
the ...
Identification Tags
All vehicles are equipped with a Vehicle Certification Label, located
on the driver side door lock post.
For correct transmission identification, refer to the code in the space
marked TR.
...
Other materials:
Reverse Servo Assembly
Special Tool(s)
Dial Indicator Gauge with
Holding Fixture
100-002 (TOOL-4201-C)
Remover/Installer, Servo
Piston
307-251 (T92P-70023-A)
Installer, Servo Piston
307-073 (T80L-77030-A)
Removal
1. Remove the main co ...
Air Bag Disposal - Passenger, Undeployed, Scrapped
Vehicle
Remote Deployment
WARNING: Always wear safety glasses when repairing an air bag
supplemental restraint
system (SRS) vehicle and when handling an air bag module or safety belt
retractor/pretensioner assembly. This will reduce the risk of injury in
t ...
Pressure Plate Check
1. Check the clutch pressure plate surface for scoring, cracks or
discoloration. Minor scratches or
discoloration should be removed with a fine emery cloth.
2. Measure the flatness of the clutch pressure plate surface with a
straightedge and a feeler
g ...
